Stove



T. POORB. s'Tov, HEATER, AND FURNAGE.'

Patented June `1, 1886.

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N0.34z,809. A

TOVNSEND POORE, OF SCRANTON, PENNSYLVANIA.

sTovE, HEATER, AND FURNACE.

,SSPECIPICATION forming part of Letters Patent No. 342,809, dated June 1, 1886.

Application ledMay 25, -1885. Serial No. 166,559. (No model.l

T all whom, t may concern:

Beit known that I, ToivNsEN-n Poolen, a citizen of the United States, residing at Soranton, in the county of Laekawanua and State of Pennsylvania, have invented a new and useful Improvement in Stoves, Heaters, and Furnaces, of which the following is a specification.

My invention consists in' certain novel constructions and combinations of parts in heat ing structures, as will be hereinafter described and specifically claimed. By my invention a heating structure is secured which possesses many advantages,'being very convenient of management, effective in its operation, and

adapted for the use of culrn or anthracite dust or particles as fuel, such fuel being supplied from a hopper or magazine, carried from the same to the opposite side of the combustionchamber by revolving the grate, and when the mass of spent fuel is to be discharged it is effected by a further movement of the grate, which movement causes a fresh supply of fuel to be carried and spread in the combustionchamber. The fuel on the grate can be agitated and the fire enlivened by vibrating the grate, and during this operation the fine ashes and cinders are discharged through the openings in its periphery.. rlhe construction is also such that clinkers can be readily broken up and discharged at the periphery of the grate into the sides of the ash-pit along with the refuse mass of spent fuel.

My improved stove differs from those having endless-chain grates in its great simplicity and freedom from liability to bind, and also from those having cylindrical grates formed of rings, Which are simply reversed in position when burned out on one portion, in order to bring into use a portion not impaired.

My stove depends upon the revolution of the grate, always in the samedirection, for the supply and spread of the fuel in the combustion-chamber, as also for the discharge of the bed of spent fuel and clinkers; but while this is the case provision is also made for vibrating the grate for the agitation of the fire, and for the discharge of fine ashes through the apertures iu the periphery of the grate.

In the drawings, Figure l is an outside front elevation lof a stove with my invention. Fig. 2 is a broken vertical section in the line w w of Fig. 8, the grateshaft and a portion of its spiders or arms being shown in elevation. Fig. 3 isvertical section in the line y y of Fig. l; and Fig. 4 is a plan View of the ribbed and perforated hollow cylinder of the grate.

A represents the outer casing of a stove, heater, or furnace, provided with a magazine, A', with feed-regulating slide-plate A2, and doors c in its fire-chamber section, and draft-- doors b in front or side or both in front and side of its ash-pit section; also, having an ashdraw, c, a draft-fine, d, air-heating tubes e e, and partition-plates fg ashort distance above the ash-pit doors.

The forni of heating structure represented is one of many forms which may be adopted in the use of my invention.

B is a cylindrical revolving fire bed or grate. It may preferably be in the form of a perforated open-ended cylinder, 71., either of metal, fire-brick, or other suitable durable material, and fastened to spiders or arms 'i of a shaft, fi', which has journals j and an extension, j', for

the reception of a crank-handle, jz, or other" means by which the cylinder is revolved entirely around and vibrated in a circular path as occasion may demand.

Vithin the cylinder ha circular chute or apron, k, may be applied, said chute or apron being formed of two truncated cones, with their bases meeting each other and touching the inner circumference of the cylinder, and their truncated ends extending to the ends of the cylinder and fitting snugly around the shaft z", and being notched at k to receive the arms fi, as shown. The cylinder and chute or apron are of less length transverse of the outer casing, A, than the space inelosed by said casing, while the shaft t" is longer than the said space, and is journaled suitably in the casing A, as represented. By this construction and arrangement of the grate B ash-spaces m are formed between the casing and the ends ofthe grate when it is applied Within the stove, and ashes and small particles which pass through the holes in the cylindrical grateB and fall upon the inclined surfaces of the chute or apron k can dow through these passages and be deposited in the ash pit or drawer. The

chute or apron and cylinder h, being united by means of the spider or arms t', turn with the shaft i. On the periphery of the cylin- IlO Y chamber.

der narrow ribs n may be affixed or construct ed at suitable intervals, as shown, and between these ribs the perforations of the revolving fire-bed may always come. These ribs extend from end to end of the cylinder, and their function is to take hold of the lower or base portion of the culm or anthracite dust and carry it positively around from the feed to the discharging side ofthe fire-chamber.

The grate, when set in position, may nearly touch the partition-plates f g, and the fuel on the rotary grate cannot pass down into the ash-pit until these partitions are adjusted ont of the way.

The partition f can be slid in and out so as to make the escape freer when clogging matten-such as clinkeiswinterfcre with the revolution of the grate.

The partition g is hung on a pivot, g', and connected by an arm to a spring, y?, attached to some part of the casing ol' the stove, and while it serves to shut oft' the downflow of fuel at the feed side of the stove, it is moved up out of the way by the ribs of the grate when the grate is revolved in the direction of the arrow.

In constructing the chute four separated quarter sections or segments may be placed within the cylinder around the shalt and united by fastenings p, and then four other quarter sections or segments may be placed in reverse position around the shaft and fastened together by fastenings similar to those designated by 7).

The operation ofthe invention is as follows: A fire being kindled on the revolving cylin` drical `fire bed or grate I3 in the fire or com bustion chamber, and the magazine A filled with culm, when said fire begins to fail, as it willrtrst on the side farthest from the magazine, and near the middle, it is replenished with fresh cnlm by rotating the cylindricalr fire bed or grate gently a short distance in the direction of the arrow, the fresh fuel being taken from the magazine, the regulating or cut-off slide plate having been raised to allow the fuel to feed into the combustion- Simultaneously with the supply of fresh fuel a proper quantity of ashes will have ash-pan or other receptacle.

My invention will prove very useful in connection with stoves, furnaces, and other heating structures or cooking apparatus intended for burning eulm, inasmuch as it avoids the necessity of raking the fire. A culm fire cannot be raked without a strong tendency to put it out, and as I agitate, enliven, and clean the fire by revolving the grate all necessity for raking such fires is avoided. "With my grate the fire can remain undisturbed until the portions nearest the discharge side and middle are reduced to ashes, and the ashes can be rotated away without destroying or impairing the active portions, and simultaneously therewith fresh fuel supplied; and, further, the grate can always be kept clean and supplied \/vithjfresh fuel without diieulty or liability of cooling down the heat ofthe stove.

The upper portion of the stove and the airheating tubes may be made of sheet-iron, and thus serve as a quick and powerful heater. rlhe air circulating from side to side through the tubes c will be heated and thrown into the room or conducted off by pipes at one side of the stove into apartments.

The intermediate portion of the stove may be lined with fire brick, and be constructed of cast-iron or other metal, as deemed most suitable.

I do not claim under this application an endless-chain grate having ribs or projections on the links of its chains, that being claimed in my pending application No. 162,319, filed April 15, 1885. f

In cases of `large furnaces two revolving flanged cylinders might be placed side by side in an outer casi ng to form a lire-bed, and the fuel would be fed on each cylinder through supply-passages on different sides of the furrIhis specific construction will form the subject-matter of asubsequent application for a patent. Y

My invention is not confined to the precise construction and arrangement of parts herein shown and described, as other equivalent constructions and arrangements may be adopted without departing from the principle of the Saville.

\Vhat I claim as myinventiou is-M 1. The combination, with a heating structure, of a revolving cylindrical fuel support ing, moving, and distributing grate provided with projections or ribs ou and passages in its periphery and with an ash-chute on its inside, whereby it is adapted as an ash and clinker mover and discharger, substantially as described.

2. The combination, with a heating structure, of a hollow revolving open-ended cylindrical grate having an ash-chute within it for discharging the ashes `into the ash-pit, substantially as described.

3. The combination, with a heating structnre having partitions or cut-off plates, as f and g, of a revolving cylindrical fire-bed, substantially as and for the purpose described.

4. The combination, with a heating structure having apassage for ashes between its wall and the end of the grate, of a hollow revolving open-ended cylindrical grate having an ash-chute within it, substantially asdescribed.

5. A hollow revolving cylindrical openended grate provided with. journals to revolve upon and having a double inclined ash-chute on its inside adapted for discharging ashes in opposite directions into an ash-pit of a heat ing structure, substantially as described.

TOVN SEND POORE.

Vitnesses:

hns. Pariser.,4 WM. T. HAUKETT.

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